Hardware common sense: Which security door is the best?

The purchase of furniture hardware is related to the safety and comfort of consumers' daily life, especially the anti-theft door. As the first line of defense, the purchase of the anti-theft door has also become very important. Here, I have compiled some common knowledge about the purchase of anti-theft door hardware:

The full name of the anti-theft door is the anti-theft security door. According to the public safety industry standard 'General Technical Requirements for Anti-theft Security Door' GA25-92 formulated by the Ministry of Public Security in 1992, the anti-theft door must be qualified and produced by the legal testing agency according to the standard. Products produced by the enterprise after obtaining the production permit for safety technology protection products issued by the safety technology protection department of the provincial public security department (bureau). The basic concept of anti-theft door and anti-theft door is the same. It refers to a door with special lock and anti-theft device that can resist abnormal opening under certain conditions within a certain period of time.

Qualified anti-theft doors generally use three-way locks. Not only the door locks are locked, but the upper and lower bars can be inserted and locked to secure the door. Inferior security doors do not have three-point locking or optional three-point locking structure. Moreover, a truly good lock is not that the more lock points the better, there is actually no essential difference between 4 lock points and 10 or 20 lock points. No matter how many lock points there are, the center is on the lock cylinder. As long as the lock cylinder is broken, no amount of lock points will be useful. Generally speaking, 4 lock points are sufficient.

The quality of workmanship should pay special attention to checking whether there are welding defects, such as open welding, non-welding, missing welding, slag inclusion, etc. Check whether the door leaf and the door frame are tightly matched, whether the gap is uniform, whether the opening is flexible, whether all joints are dense, whether the paint plating is uniform, firm, and smooth. In addition, anti-theft doors with slightly better quality have rubber sealing strips embedded on the door frame, so that the door does not make a harsh metal collision sound when the door is closed.

The real anti-theft door must be tested and qualified by the statutory testing agency according to the standard, and has a production permit for security technology protection products issued by the security technology protection department of the provincial public security department (bureau) where the manufacturer is located. When buying, you should also pay attention to the FAM logo, company name, and implementation standards of the anti-theft door. Only doors that meet the standards can be safe and reliable.

The 'General Technical Requirements for Anti-theft Security Doors' stipulates that a qualified anti-theft door cannot be pried or opened on the door leaf by criminals using ordinary hand tools such as chisels, screwdrivers, crowbars and portable electric tools such as electric drills within 15 minutes An opening of 615 square centimeters, or an opening of 38 square centimeters in a semicircle of 150 square millimeters at the locking point. And the lock used on the anti-theft door must be a special anti-theft door lock with anti-drilling function that has been tested by the Ministry of Public Security Inspection Center. The anti-theft door can be made of different materials, but only the door that meets the standard test and obtains the production license of security technology to prevent the product can be called the anti-theft door.